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International and Cross-Border Payment Processing for High-Volume Merchants

offshore merchant account guide representation with globe
written by:
Sean Marchese

While international growth can expose a merchant to new customers and payment methods, it can also expose the company to higher decline rates, foreign exchange costs, and reconciliation complications.

Effective cross-border payment processing involves more than simply enabling international credit and debit card processing for a merchant’s accepting terminal. For high-volume merchants, setting up an acquiring, currency, and risk strategy that accounts for where customers live, where they prefer to pay, and where the merchant receives funds from customers is crucial.

How Cross-Border Payment Processing Works

A transaction is generally considered to be cross-border if the merchant and the customer are in different countries. International payment processing is a broader category that may include foreign cards, currencies, payment methods, and bank accounts.

The currency used by the customer to make the payment, the currency of the checkout process, and the currency of the merchant’s sales may all be different. Stripe uses different currencies for payments made with specific payment methods, the currency presented during the purchase process, and the currency of merchant bank accounts.

These currencies can impact several aspects of the transaction, such as:

  • authorization rates
  • interchange and network fees
  • cross-border transaction fees
  • foreign exchange fees
  • timing of settlement of transactions
  • amount of refundable amounts
  • ability to recognize the payment method
  • fraud detection software
  • regulations for payments
  • accounting processes

High-volume merchants should ensure that international sales are included in the underwriting profile approved by the payment processing company. A significant increase in foreign sales or new countries for sales may require a review of the merchant’s sales by the payment processing company, even if the sales are legitimate.

Choose the Right Cross-Border Payment Processing Model

Merchants do not need the same payment structure in every country. The correct model depends on transaction concentration, local payment preferences, operational capacity and the cost of maintaining regional relationships.

Processing Model Best Fit Main Advantage Main Tradeoff
Domestic acquiring with international cards Merchants testing overseas demand Simple setup through an existing account Cross-border costs and declines may be higher
Multi-currency global acquiring Merchants selling broadly across several markets Customers can pay in supported local currencies FX and cross-border pricing require close review
Local acquiring Merchants with substantial volume in one country or region Often improves domestic authorization and cost Requires regional setup and compliance
Multi-acquirer routing Large merchants with concentrated global volume Transactions can be routed by market or performance More integrations, contracts and reporting complexity
Alternative local payment methods Markets where cards are not the preferred method Better fit with regional customer behavior Settlement and refund processes vary by method

Local acquiring processes a transaction through an acquiring relationship in the customer’s country or region. Stripe notes that this can produce higher authorization rates and lower domestic transaction costs because of closer relationships with local issuing banks. Global acquiring offers broader coverage with less regional setup but can carry more cross-border and FX costs.

Many high-volume merchants use a mixed model. Global acquiring supports smaller or newer markets, while local acquiring is added where volume, declines or customer preferences justify the operational investment.

How to Improve Cross-Border Payment Approval Rates

Customers are more likely to complete the purchase process when they understand the charge amount and currency. While presenting the customer charge amount in local currency can help improve the customer approval rate, merchants must decide between showing the amount they will be charged in local currency and the currency in which the funds will settle.

Stripe supports more than 135 currencies, and the company states that presenting the customer with prices in the localized currency can help improve the customer approval rate. According to Adaptive Pricing, which analyzed 1.5 million subscription checkout sessions, presenting localized currency improved the conversion rate by 4.7% and the authorization rate by 1.9%. These are Stripe-specific results for subscription merchants and should not be applied to all merchants as a guarantee of customer approval rate improvement.

Other factors to consider for each market include:

  • local payment methods
  • regional card preferences
  • local acquiring
  • EMV 3-D Secure
  • device and behavioral risk signals
  • issuer response codes
  • retry timing for recurring payments
  • recognizable billing descriptors
  • checkout language and address formats

EMV 3-D Secure allows merchants and financial institutions that issued the cards to exchange additional data associated with the transaction. This protocol was created to prevent fraudulent transactions in ecommerce while minimizing the inconvenience of authentication for legitimate customers.

Understanding Cross-Border Payment Processing Costs

A cross-border transaction can generate several costs beyond the standard processing rate:

Cost What to Review
International-card fee Additional processor charge for a foreign-issued card
Network cross-border fee Card-network cost based on transaction geography
Currency-conversion fee Charge for converting presentment funds into the settlement currency
FX spread Difference between the reference exchange rate and the applied rate
Gateway fee Cost for authorizing and transmitting the transaction
Local payment-method fee Pricing for bank transfers, wallets or regional methods
Refund conversion FX gains or losses when exchange rates change before a refund
Dispute cost Chargeback fees, evidence work and lost fulfillment

Stripe’s current U.S. standard pricing illustrates how these costs can stack. It lists 2.9% plus 30 cents for domestic online cards, an additional 1.5% for international cards and another 1% when currency conversion is required. These rates are one provider’s published pricing, not a universal industry schedule.

A high-volume merchant should compare effective cost by country rather than reviewing one global average. A market with strong sales may still produce weak margins when cross-border fees, FX, refunds and declines are combined.

Managing Fraud and Compliance for International Payments

International transactions can look unusual to both merchant and issuer fraud models. A legitimate customer may use a foreign card, travel-related IP address, forwarding service, or billing and shipping addresses in different countries.

Blocking every mismatch will create false declines. Approving every foreign order without review can create fulfillment losses and chargebacks.

A layered cross-border e-commerce fraud strategy may include:

  • transaction and decline velocity controls
  • device intelligence
  • IP and geographic analysis
  • AVS and CVV results
  • EMV 3-D Secure
  • customer and account history
  • shipping-risk review
  • manual review for high-value orders
  • bot and card-testing controls
  • product-specific risk thresholds

International merchants must also consider sanctions and restricted-party obligations. The U.S. Treasury’s Office of Foreign Assets Control states that U.S. persons and firms engaged in online commerce are responsible for avoiding unauthorized dealings with sanctioned persons and jurisdictions. OFAC recommends a tailored, risk-based compliance program that may include sanctions screening.

Payment security requirements remain in place when transactions cross borders. Outsourcing checkout can reduce the amount of payment data handled directly by the merchant, but it does not automatically eliminate every PCI DSS responsibility.

How to Reduce International Chargebacks and Disputes

International chargebacks may originate from customer confusion rather than fraud. Customers may not be familiar with the descriptor, may not understand the currency or may not know when the product will arrive.

When setting up the sale, merchants should provide the following information:

  • The currency to be used for the transaction before payment is processed
  • The timeframe for delivery of the shipped goods
  • Information regarding customs and duties for the product
  • Support services in the customer’s language or with accessible support services
  • A recognizable product descriptor
  • A clear refund policy
  • Confirmation of the refund amount and currency
  • Shipping tracking information
  • Service and access records

These fields should include the original amount of the transaction and the currency that was used. Due to exchange rates, the customer may receive an amount that is not the same as the original transaction amount even if the merchant processes the refund in its entirety.

Build a Cross-Border Payment Strategy for Growth

International expansion should proceed market by market rather than through one global switch. Merchants need enough data to identify which countries justify localized payment infrastructure.

Track the following by country and currency:

  • attempted payment volume
  • authorization rate
  • issuer-decline rate
  • fraud rate
  • dispute rate
  • refund rate
  • effective processing cost
  • FX cost
  • average order value
  • preferred payment method
  • settlement timing
  • net contribution margin

NMI supports multiple currencies based on the connected processor and allows multiple merchant IDs to be managed within one gateway environment. This may help eligible merchants organize regional acquiring relationships and consolidated reporting without maintaining entirely separate gateway integrations.

Payment Nerds may help eligible merchants evaluate cross-border underwriting, multi-currency gateways, NMI configurations, regional processing and fraud controls. Payment Nerds primarily works with NMI and Authorize.net, but Authorize.net accounts are generally configured for one currency and supported currencies depend on the connected processor. Merchants needing several settlement currencies should confirm the exact account structure before implementation.

Before entering a new market, ask:

  1. Can the current merchant account accept cards from this country?
  2. Which currency will the customer see?
  3. Which currency will the merchant receive?
  4. What cross-border and FX charges apply?
  5. Is local acquiring available?
  6. Which payment methods do local customers expect?
  7. Does the checkout support regional authentication?
  8. How will refunds and disputes be handled?
  9. Are products or transactions restricted in that jurisdiction?
  10. Can reporting separate the new market from existing activity?

A controlled rollout lets the merchant adjust fraud rules, customer messaging and processing limits before international volume becomes operationally significant.

Cross-Border Payment Processing Questions

Q: What is cross-border payment processing?
A: Cross-border payment processing allows merchants to accept payments from customers, issuers, or relationships located in another country. Cross-border payments often involve fees associated with international cards, currency conversion, and controls.

Q: What is international payment processing?
A: International payment processing allows merchants to accept foreign payment methods and currencies. International payments often use domestic, global or local acquiring companies to process the payments for the merchants.

Q: What is cross-border ecommerce?
A: Cross-border ecommerce occurs when an online merchant sells to customers in other countries. The merchants are often required to manage international payments, shipping, taxes, and customer disputes.

Q: Does local currency pricing improve conversion?
A: It can help to reduce the uncertainty of a customer about the price. Stripe saw improved conversion and authorization performance with one of its own subscription checkout studies. However, the outcome will differ from merchant to merchant.

Q: What is local acquiring?
A: Local acquiring will route the transaction through the merchant’s acquiring relationship in the customer’s country or region. This can help increase transaction authorization and reduce costs in countries with sufficient transaction volumes.

Q: What fees apply to international cards?
A: When international cards are processed through a merchant account, the fees will include interchange fees, processor markup fees, cross-border transaction fees and foreign exchange fees. Merchants should request a price for international cards and foreign exchange (FX) instead of the domestic transaction rate.

Q: Do merchants need a separate account for each country?
A: No, they do not. The global acquiring account can handle merchants with customers in several countries. Using separate accounts for each country will only be useful when sales in a specific region reach a level that allows for better authorization and payment methods.

Q: Can NMI support international payments?
A: The NMI hardware can accept USD, CAD, and other currencies from the processor that is connected to the NMI device. The NMI also accepts multiple merchant IDs, but each currency and account must be set up and approved by the processors.

Q: How can merchants reduce international chargebacks?
A: By making sure that the currency is displayed on the receipts, using readily recognizable currencies, including delivery descriptions and dates, and keeping all records of the products that were shipped. Additionally, offering support for international merchants and ensuring they understand the timing of international chargebacks will help reduce these chargebacks.

Scale Your International Payment Processing Strategy

Do not evaluate the international processing market as one global rate. Many factors go into evaluating the international processing market. Start by evaluating the global market, then dive into the individual markets and payment methods for each area of interest if the data supports it. The best international payment solutions for merchants offer a customer experience that is as familiar as possible while offering merchants control over the process.

About the Author

Sean Marchese

Sean Marchese, MS, RN, is a Senior Writer for Payment Nerds, specializing in secure payment solutions, fraud prevention, and high-risk merchant services. With over a decade of experience in regulated industries, Sean simplifies complex payment processing challenges, helping businesses optimize their strategies and improve revenue.

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